This rechargeable grass trimmer earned The Best rating from the Hammacher Schlemmer Institute because of its powerful, precise trimming, ease of use, long-lasting battery, and superior features. It cut through 8' sq. of grass in 74.41 seconds and edged a path along a 30' fence in 23.92 seconds, 52% and 23% faster than lesser units, respectively. Rated as the easiest unit to use, it has an adjustable handle, vertical to horizontal tilting head, wheel for edging, and a convenient button that feeds the line. Its two 20-volt batteries enabled it to run for 56 minutes on a 70 minute charge, unlike lesser models that required 150 minutes of charging to provide the same power. It has variable speed control and a 13"-diameter cutting area. Charges via AC charger. 65 3/4" L x 13 3/4" W x 9" D. (6 1/2 lbs.)